COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
expand_more
expand_more
format_list_bulleted
Question
Chapter 22, Problem 5QAP
To determine
Whether the Maxwell's effort is more important than the individual discoveries of Gauss, Ampere, and Faraday or not.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Sunlight delivers 2.63x10^8 W/m^2 to the surface of Venus. If the rms magnetic field strength is about 3.32x10^−6 T, what is the rms value of the Sun’s electric field? Show all work.
The general equation for the electric and the magnetic field as per the electromagnetic
theory is,
E= Emar, cos (kx –- ot)
B| = Bmar. Cos (kx – ox)
The energy per unit volume in an electric field is,
1
UE
The energy per unit volume in a magnetic field is,
1 B
UM
2 Ho
Also, the energy density and the total energy associated with the magnetic field and the
1
(E×B).
Ho
electric field are equal. The rate with the energy flows in an EM wave is S =-
In the positive x direction, a plane EM wave varies sinusoidally at 99 MHz and the peak
value of the electric field is 2 mV/m and it is moving in the ty direction. The wavelength
and period of the wave is,
(а) 3.03 m, 0.01 us
(b) 1.3 m, 0.01 s
(c) 2.1 m, 10s
(d) 1.11 m, 0.55 s
The average intensity of sunlight reaching Earth is about 1360 W/m2.
What is the rms magnetic field of a TEM wave with this intensity?
The Earth’s magnetic field has a magnitude of 5 × 10-5 T. How does your answer from part (a) compare? Why don’t we feel this magnetic field?
Chapter 22 Solutions
COLLEGE PHYSICS
Ch. 22 - Prob. 1QAPCh. 22 - Prob. 2QAPCh. 22 - Prob. 3QAPCh. 22 - Prob. 4QAPCh. 22 - Prob. 5QAPCh. 22 - Prob. 6QAPCh. 22 - Prob. 7QAPCh. 22 - Prob. 8QAPCh. 22 - Prob. 9QAPCh. 22 - Prob. 10QAP
Ch. 22 - Prob. 11QAPCh. 22 - Prob. 12QAPCh. 22 - Prob. 13QAPCh. 22 - Prob. 14QAPCh. 22 - Prob. 15QAPCh. 22 - Prob. 16QAPCh. 22 - Prob. 17QAPCh. 22 - Prob. 18QAPCh. 22 - Prob. 19QAPCh. 22 - Prob. 20QAPCh. 22 - Prob. 21QAPCh. 22 - Prob. 22QAPCh. 22 - Prob. 23QAPCh. 22 - Prob. 24QAPCh. 22 - Prob. 25QAPCh. 22 - Prob. 26QAPCh. 22 - Prob. 27QAPCh. 22 - Prob. 28QAPCh. 22 - Prob. 29QAPCh. 22 - Prob. 30QAPCh. 22 - Prob. 31QAPCh. 22 - Prob. 32QAPCh. 22 - Prob. 33QAPCh. 22 - Prob. 34QAPCh. 22 - Prob. 35QAPCh. 22 - Prob. 36QAPCh. 22 - Prob. 37QAPCh. 22 - Prob. 38QAPCh. 22 - Prob. 39QAPCh. 22 - Prob. 40QAPCh. 22 - Prob. 41QAPCh. 22 - Prob. 42QAPCh. 22 - Prob. 43QAPCh. 22 - Prob. 44QAPCh. 22 - Prob. 45QAPCh. 22 - Prob. 46QAPCh. 22 - Prob. 47QAPCh. 22 - Prob. 48QAPCh. 22 - Prob. 49QAPCh. 22 - Prob. 50QAPCh. 22 - Prob. 51QAPCh. 22 - Prob. 52QAPCh. 22 - Prob. 53QAPCh. 22 - Prob. 54QAP
Knowledge Booster
Similar questions
- A radio transmitter broadcasts plane electromagnetic waves whose maximum electric field at a particular location is 1.55103V/m . What is the maximum magnitude of the oscillating magnetic field at that location? How does it compare with Earth’s magnetic field?arrow_forwardA 150-W lightbulb emits 5% of its energy as electromagnetic radiation. What is the magnitude of the average Poynting vector 10 m from the bulb?arrow_forwardAn automobile with a radio antenna 1.0 m long travels at 100.0 km/h in a location where theEarth’s horizontal magnetic field is 5.5105T . What is the maximum possible emf induced in the antenna due to this motion?arrow_forward
- An incandescent light bulb emits only 2.6 W of its power as visible light. What is the rms electric field of the emitted light at a distance of 3.0 m from the bulb?arrow_forwardA radio station broadcasts at a frequency of 760 kHz. At a receiver some distance from the antenna, the maximum magnetic field of the electromagnetic wave detected is 2.151011T . (a) What is the maximum electric field? (b) What is the wavelength of the electromagnetic wave?arrow_forwardHow does the intensity of an electromagnetic wave depend on its electric field? How does it depend on its magnetic field?arrow_forward
- Check Your Understanding Could a purely electric field propagate as a wave through a vacuum without a magnetic field? Justify your answer.arrow_forwardRadio waves normally have their E and B fields in specific directions, whereas visible light usually has its E and B fields in random and rapidly changing directions that are perpendicular to each other and to the propagation direction. Can you explain why?arrow_forwardCheck Your Understanding What conclusions did our analysis of Maxwell's equations lead to about these properties of a plane electromagnetic wave: (a) the relative directions of wave propagation, of the E field, and of B field, (b) the speed of travel of the wave and how the speed depends on frequency, and (c) the relative magnitudes of the E and B fields.arrow_forward
- When you stand outdoors in the sunlight, y can you feel the energy that the sunlight carries, but not the momentum it carries?arrow_forwardThe magnetic field in a plane electromagnetic wave is represented by the equation B = Bmax sin(ky - wt)î where Bmax = 2.94 x 10 T and k = 5.86 x 10' /m. (Assume a standard xyz right-handed coordinate system.) (a) What is the magnitude and direction of the electric field at the instant the magnetic field is a maximum? (Express your answer in vector form.) Emax - 88.2k V/m (b) What is the wavelength of the wave? 10.7 How is the wavelength of EM waves related to the wave number? nm (c) What is the frequency of the wave? 2.80E-15 How is the frequency related to the wavelength? Hzarrow_forwardHow did Maxwell fix Ampere's law in electromagnetic equations? Mention the physical significance of the correction. A magnetic field is given by the expression B = axzî+ byzj + ck. What is the relationship between a and b?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill